Type-writing machine



(NqMpdeL) 4 SheetsSheet 1. r

H. ABBOTT. TYPE WRITING MACHINE.

ted Sept. 30. 1890.,

Pate

w (No Model.) 4 Sheets-Sheet 2. I

H. ABBOTT. TYPE WRITING MACHINE.

Q No. 437.372. Patented Sept. 30, 1890.

(No Model.) 4 Sheets-Sheet 3.

H. ABBOTT. TYPE WRITING MACHINE.

No. 437,372. Patented Sept. 30. 189 0.

(No Model.) 4 Sheets-Sheet 4.

H. ABBOTT. TYPE WRITING MACHINE.

No. 437.372. Patented Sept. 30, 1890.

1 z wanna rz'rsns co more L r IUNVITED STATES PATENT OFF CE.

HENRY ABBOTT, OF NEWARK, NEW JERSEY.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 437,372, datedseptember30, 1890.

\ Application filed October 5, 1888- Serial No. 287,331. (No model.)

To all whom it may concern.-

Be it known that I, HENRY ABBOTT, of Newark, in the county of Essex, andin the State of New Jersey, have invented certain new and usefulImprovements in Type-WVriting Machines; and I do hereby declare that thefollowin g is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, in which Figure 1 is aperspective View of my improved machine. Fig. 2 is an enlarged plan viewof the type and their operating-bars from above. Fig. 3 is a verticalcentral section of said machine upon a line passing from front to-rear.Fig. 4 is an enlarged perspective view from beneath of my improvedinking-pads. Fig. 5 is a like view of the parts of the same separatedfrom each other, and Fig. 6 is a vertical central section of said padsas combined for use.

Letters of like name and kind refer to like parts in each of thefigures.

The design of my invention is, mainly, to enable upper and lower caseletters to be used in a type-writing machine without material increasein the size of the machine, and, further, to enable the large and smallletters to be printed with inks having diiferent colors; to which end mysaid invention consists, principally, in the relative arrangement of thetype, substantially as and for the purpose hereinafter specified.

It consists, further, in the means employed for moving the type againstand from the printing-surface, substantially as and for the purposehereinafter shown.

It consists, further, in the means employed for separately inking thedifferent ranks of type, substantially as and for the purposehereinafter set forth. i

It consists, finally, in details of construction, substantially as andfor the purpose hereinafter shown and described. y

In carrying my invention into practice I employ a type A, which issecured upon one end of a bar B, that has its opposite end piv oted upona crank-arm O, which crank-arm is in turn pivoted or journaled upon ahorizontally-arranged fulcrum D, that is secured upon the frame E of themachine. The typebars B and B are arranged with their fulcrums D and Dupon a circular line, which is concentric with a common center,.and uponsuch line are equidistant from each other, as shown. Said bars haveequal-length; but the arms a of the cranks vary in length, so that everyother type-bar when occupying its nor mal position is about one-fourthof an inch farther. from the center than the bars upon each side, andtheir types occupy the same relative positions, as shown in Fig. 2.While thus arranged, each type when moved to the inner limit of itsmotion will occupy the precise central position necessary for printing,the throw of the crank-arms of the outer typebars being sufficientlygreater than the throw of the crank-arms of the inner bars to compensatefor the differences in the normal radial positions of said type. It willbe seen that by the staggered arrangement of the types A and A in twoconcentric lines said types do not interfere with or crowd eachother,'and also occupy a con- For the purpose of inking the types A anda A, I employ two annular felt pads F and F, which have the same outsidedimensions, while interiorly said pad F has an opening which is aboutone-half the diameter of the opening of said pad F. The pads F and F areseparated by means of a washer, prefer ably metal, which corresponds insize .and

shape to the like features of said pad F, and

are then placed within a suitable recess formed within the housing Gofthe machine, with the outer edge of the lower pad F in engagement with Vthe bottom of such recess.

Upon the upper side of the pad F is now placed an annular metal plate H,that covers the same and extends inward beyond its inner edge, afterwhich said parts are locked in place by means of a metal ring I, that isprovided with a peripheral exteriorly-threaded flange i and fits intothe recess over said parts, with its threaded periphery in engagef ingthe latter wholly within one of the lines of type and the small lettersand characters entirely within the other line of type the capitals wouldbe inked by a separate pad, and to such could be supplied any desiredcolor of ink.

.I-Iaving thus'fullydescribed my invention,

what I claim is-- 1. As an improvement in typeavriting machines, thecombination, with two series of. type-levers which are normally arrangedin concentric rows, of mechanism, substantially as described, wherebysaid type-levers may be moved upon fulcra equidistant froma sai'dprinting-center, substantially as andfor the purpose specified.

2. As an improvement in type-writing machines, the combination, with twocircular series of type-levers which are normally arranged in.concentric rows, of mechanism, substantially as described, whereby saidtype levers may be moved upon fulcra equidistant. from a printing-centerin radial planes as andfor the purpose shown.

3. As an improvement in type-writing machintes, the combination, withtwo series of type-levers which are normally arranged in.concentric'rows, and in which the printingfaces of the type of one rowoccupy a different horizontal plane from that of the other. row, of!mechanism, substantially as described, whereby said type-levers may bemoved upon fulcra equidistant from a printing-center in a radial planeto and from said printing-center, substantially as and for the purposeset forth. 7

4.. As. an improvement in type-writing machine's the combination, withtwo series of type-carrying levers which normally are arrangedinconcentric rows and in contact with an ink-supply, of mechanism,substantially as described, whereby said leversmay be moved uponf ulcraequidistant from a printing centeriin a radial plane to and from saidprinting-center, substantially as and for the purpose shown anddescribed.

5. As an improvement in type-writin g machines, the combinatiomwith twoseries of type-levers which are normally arranged in. concentric rows,of mechanism, substantially asidescribed,wherebythe levers of one rowmay begiv'en' a greater degree of movement than. th'e'levers of theother row,all of the levers of both series moving, upon fulcraequidistant from a printing-center, substantially as and for the purposespecified.

6. As an improvement in type-writing machines, in combination withtype-bars arranged in lines that are radial to a common center and areequidistant from each other, crank-arms that are journaled in a lineconcentric therewith and are provided with arms that relatively arealternately long and short, each of which arms is pivotally connectedwith one of said type-bars, substantially as and for the purpose shown.

7. As an improvement in type-writing machines, in combination'withtype-bars that carry type upon their inner ends, are arrangedequidistant from each other upon lines radial to a common center, andare adapted to have their type moved to or from the same and supportedby and vibrated on fulcraequidistant from said center, actuatingmechanism, substantially as shown, wher.eby when 1 at rest eachalternate bar andits type are far-- ther from the center than theadjacent bars, l substantially as and for the purpose set forth.printing-center in radial planes to and from 8. As an improvement intype-writing machines, in combination with type which when at rest arearranged at relatively equidistant points upon two lines that areconcentric with I each other and with a common printing-cert .ter, twoseparate annular inking-pads whi'ch are arranged in diiferent horizontalplanes, i have different diam eters, andare each adapted:

to have contact with one of such lines 'oftype,

substantially as and for the purpose shown; toandfromsaidprinting-center, substantially 9. As an improvement in. type-writingimachines, in combination with type-carrying 1e- .vers which when at restare arranged in-two concentric rows and have their printing. charactersoccupying. different elevations, two an-:

nular inking-pads that are combined so-asto bring the face of one intoposition for con tact with the upper series of type and theface of theother into position for contact with the lower series of type,substantially as and for the purpose specified.-

10. As an improvement in type-writing ma chines,-in combination withtype which when at rest are arranged in two concentriclines, an annularinking pad that is adapted to:

vIIO

have contact with the outer line of type, an

, annular inkingapad' which is adapted tohave contact with the innerline of type, an annular metal plate separatingsuch pads, and an annularmetal plate that is placed uponthe upper pad and operates as'a backingfor the I same, substantially as and for the purpose shown.

In testimony thatI claim the foregoing I have hereunto set my hand this5th day ofi September, 1888.

HENRY ABBOTT;

Witnesses:

JOHN W. CoMBs, ALBERT KAMP.

